I will go against the author tonight and key Racecar Rhapsody.  The slow, steady progression in why.  the 5 pt. jumps on the others look pretty big, and this horse- the 13 days notwithstanding-looks like the mover to me.  My pick 4 starting with race 5 (all stakes) - just a quick $16:

5)   4
   
6)   7,8,9,10
   
7)   6,7
   
   7,1

I guess the 2YO out West really are below par, otherwise why all the jocks rushing in for this?  In race 7, outside of Borel, no name riders...